[Avail] Super User

I was going to you the function in the Super User app to update the binary file to 3.1.1 from 3.0.3.2 but it says fail at root access then I get the notification Super User was denied Super User permission.

I found out not only can I not update the binary but I no longer have root access through Superuser. I'll try to keep you updated on my findings. If anyone is smarter then I am(which doesn't take much) please post advice.

I got an update from the carrier that I didn't accept and it UN-rooted me. In the app, use ghost mode. Go out of the app, enter the code, and get the update. When you enter the code in the dial pad, Superuser3 is triggered from Play store. Its the only way to get 3.
Then it will update, at least on the z990 it did, and they are very similar.
Edit- SU Update fixer may help too. I dl'd it when I had that issue, along with the Super user Elite. I also checked out his web site.

When in ghost mode, and you enter the code the first time, it triggers Play store to tell you to update Super user. That's how I got 311 on my phone. The dev made it tricky to aquire Superuser3. He calls the ghost mode the secret code for a reason.